Rube Goldberg Machine

A small ball is catapulted in the air by a larger ball and then hits another sphere. That sphere starts rolling, eventually hitting some dominos. Those dominos hit a lever that hits more dominos, which cause two huge bowling balls to fall. Those bowling balls then get two strikes. 

The material for the wood floor texture came from: https://www.myfreetextures.com/wood-floor-texture-seamless-rich-wood-patterns/

The material for the black mosaic texture on the balls and pins came from: https://www.build.com/product/summary/1710517?uid=4039550&jmtest=gg-gbav2_403955...